Improved refrigerator



i case may b WILLIAM n. MASON, O F BOSTON, MASSACHUSETTS.

Letters Patent No. 105,959, dated August 2,1870. A,

IMPROVED REFRIGERA'OR.

l'he Schedule referred to in these Letters Patent and making part of the same4 To all to 'whom these presents shallcome:

Be it known that I, WTLLIAM B. MASON, of Boston, in the county of Suffolk and Commonwealth of Massachusetts, have made a new and useful improvement in Refrigerators; and -do hereby' declare therfollowing to be afull, clear, and exact description thereof, due reference being had to the accompanying drawing making part of this ,specicatiom and in which- Figure l is a perspective view.

vFigure 2, a vertical section of a refrigerator containing my'invention.

This invention relates. to a class of refrigerators in which the ice is contained in an apartment separate from the provision-chamber, a series of` ports or passages being" created between the two'for. circulation about the ice, such ports heilig usually disposed at the up.V

per and lower parts of said ice apartment, whereby warm air is carried from the provision-chamber through the upper ports to and over and about the ice, and the cold air enters the provision-chamber through the lower ports.

The drawingr which accompanies this specification represents at A a refrigerator, of which ais the provision-chamber.

b, the ice-well or apartment; and c ci, the openings or port-s, such ports being disposed atthe top and bottom of the ice-well, and communi-f cating with the provision-chamber, this arrangement of ports being substantially the sameas in certain refrigerators now'in use.

In carrying ont my invention, I apply to the outer face of each ange Of ports a sliding gate or register, c or f, this register being'supported in guides or ways g g, Sac., in such manner as to slide freely to and froy ofthe ports, and to openand close the same, as the h, in the drawing, represents a spring, fixed at its center to the wall of the ice-chamber, and with itsopposite ends abuting one against each register, by which means the registers are forced outwardly, andvinto such a position as to close the series of air-ports.

rlhe front extremity of each register ecteuds into such a position as to be struck by the door ot'. the.; j structure upon closing'of the same, the eect of \'vhi ch' 'v 4 is to open the two series of ports and permit of the proper circulation.

Upon Opening the door, the springs advance the registers to such an extent as to close the ports and prevent access of warm air to the ice-well or apartments, tlms preventing the external warm air of the apartment in which the refrigerator is situated from i entering the ice-chamber.

rlhe value of this invention will be apparent when it is borne in mind that, owing to carelessness, the door of aV refrigerator is frequently left open for a considerable length of time.

C' la im.

In a refrigerator, substantiallysuch as herein described, the arrangement, with relation to the provisionchamber and its door, of the ice-well, registers e f, appliedto the upper and lower ports leading to said well, and

spring 71., applied to said registers, substantiallyas described, so that, when the door of the provision-chain ber is closed, it will open the upper and lower registers, and, when it is opened, it will allow the spring to cause said registers to close the openings leading from the provision-chamber to the ice-well,v as set forth.

` WILLIAM B. MASON.

lVitnesses:

FRED. Gnarls, E. GRIFFXTH; 

